Dr. Forsythe says that this preference is normal for many
dogs. Some breeds, like
Dachshunds, are actually bred to burrow, so it would be more of a surprise if they
didn’t want to cuddle under that fluffy comforter.

Theories behind why certain canines enjoy the cavelike comfort of slumbering under blankets range from a need to feel warmth and companionship while snuggled up to members of their human “pack” to a trait left over from ancestors who reared their puppies in small, dark dens.

If you're not smitten with the idea of sharing your bed with a blanket-loving pup, consider getting him a cubby-style bed of his own, suggests Dr. Forsythe.

If you do
enjoy sleeping with your dog, feel free to indulge your pooch — as long as he has a way to surface if he begins to feel too hot or claustrophobic.